私のプロジェクトのファイル構造は次のとおりです。
-src
|
-pkg
|
-CoreServlet.java(servlet)
-Main.java
-Core.java(jdbc code is here)
core.java クラス:
package com.pkg;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
public class core{
private Connection connect = null;
private Statement statement =null;
private PreparedStatement preparedStatement = null;
private ResultSet resultSet = null;
String qwerty;
public void readDataBase() {
String userName = "ansh";
String password = "12345";
try {
Class.forName("com.mysql.jdbc.Driver");
connect = DriverManager.getConnection("jdbc:mysql://localhost/glbitm", userName,password);
statement = connect.createStatement();
resultSet = statement.executeQuery("select * from teachers");
resultSet.next();
qwerty = resultSet.getString(1);
} catch (Exception e) {
System.out.println(e);
}
}
}
coreServlet.java クラス:
package com.pkg;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class coreServlet extends HttpServlet{
/**
*
*/
private static final long serialVersionUID = 1L;
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException,IOException{
core dao = new core();
dao.readDataBase();
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
pw.println("<html>");
pw.println("<head><title>Hello World</title></head>");
pw.println("<div>"+dao.qwerty+"</div>");
pw.println("<body>");
pw.println("<h1>Hello World</h1>");
pw.println("</body></html>");
}
}
私のTomcatサーバーにアクセスdao.qwertyしているとき。coreServlet.java取得class not found exception com.mysql.jdbc.driverしていて、の値がdao.qwertynull として出力されます。どこが間違っていますか？